Diameter-gage



E; H. ALDEBORGH. DIAMETER GAGE.- APPLICATION FILED JUNE I3, l9l9.

1,401,119. Patented Dw- 2 7,v 1921.

tDCD-PO UNITED STATES PATENT OFFICE.

ERIK H. ALDEBORGH, OF NEW YORK, 1T. Y., ASSIGNOR To CARL E. JOHANSSON, OF

EfiKILSTUNA, SWEDEN.

DIAMETER-GAGE.

Specification of Letters Patent.

Patented Dec. 2'7, 1921.

Application filed June 13, 1919. Serial No. 303,905.

To all whom it may concern.

Be it known that I, ERIK H. Annnnonon,

a subject of the King of Sweden, and resident of New York, in the county of New Yorkand Stateof New York, have invented a new and useful Improvement in Diameter- Gages, of which the following is 'a specification.

This invention relates to an improvement in diameter gages with the object in view of providing such a device which is compect, accurate, simple to operate, and durab e.

Another object consists in providing certain improvements in the-form, construction and arrangement of the several parts whereby the above named and other objects may be effectively attained. 1 A practical embodiment of the invention is represented inthe accompanying drawing in which,

Figure 1 representsa plan view partly broken away, and Fig. 2 represents'a vertical section taken in the plane .of the line 11-11 of Fig. 1, looking in the directionof the arrows.

The instrument comprises a' body por- 'tion, which is indicated by 1. This body may consist/substantially. of a fiat plate v' v I The body 1 also has a socket'4 which is composed. some suitable material, such as cast iron. I q

In one end of the body, there is fashioned a substantially V shaped recess, which has I straight side walls flaring outwardly. This recess is denoted by 2, and its sides are surfaced with wearing plates 3 that are screwed l to the body. I These wearing plates are per- .fectly true and are preferably. composed of some very durable material such as hardened stee I formed therein and extends inwardly from the end of therecess 2. This socket has an annular shoulder 5. A plunger 6 is slidably fitted in the socket 4 and is rearwardly re duced so as to have slidable engagement with the shoulder 5: A helical 0011 spring 7 is seated in'the socket, between the shoulder 5 and the large outer end of'the plunger 6, so as to normally urge the said plunger outwardly toward the recess 2. A cross pin 8 is passed transversely through the inner end of'the plun r '6 and is designed to abut the inner efg e of the shoulder 5 so as to on the body 1 so as to register wi the stan being measured. This condition will limit the outward movement of the plunger under the influence of its spring.

A pin 9 is slidablymounted in the plunger 6 and is arranged to be fixed inany desired position in the said lun er by means of a set screw 10. The pm 9 1s preferably composed of hardened steel. An indicator hand 11 is pivoted at 12 in the body 1 and has a laterally projecting arm 13 that enters a slot 14: formed in the rear endof the plunger 6. A springll normally ur es the handto the left, "Fig, 1. A graduate scale 15 is ar'cuate inscribed t of the hand 11. It has a zero point and degrees marked on each side of the latter. For convenience, the body portion is provided with a hand grip 16.

the point In operation, a cylindrical or spherical 4 articles that have been manufactured, it is only necessary to place eacharticle in the. recess 2 until it contacts withthe plates 3. If the article is smaller than the standard,

it will enter the recess 2 farther their the standard did and thereby press inwardly the pin 9. This movement of the: pin 9 will be transmitted to the hand 11, through the arm 13, and cause the said-hand to-move along the scale 15 to the right of the zero point. If the article being measured is larger than the standard 17 it will contact with the lates 3 at points: farther out than d gird, and will; thereb permit the plunger 6 (and hence the pin 9; to be moved outwardlyunder the influenceof the spring 7 before the pin*9 contacts with the article ermit the hand 11 to mov'e'to the 'left of the 'zero point on the scale 15, under the influ smaller than the standard according to which Way the hand 11 moves from the zero point. In any particular case, a certain tolerance will be allowed which may predetermined bythe party in charge and lndicated to the operator using the ga in terms of degrees. If, in any case, t e hand 11 does not move farther to the ri ht' or left of the zero point than the num I? of degrees indicated in the tolerance, the article will be accepted. But if the hand does move a greater number of degrees in either direction than is permitted by the tolerance, the article will be rejected.

It will be understood that various changes may be resorted to in the form, construction and arrangement of the several parts, without departing from the spirit and scope of my invention and hence I do not intend to be limited to the details herein described, exce t as they may be included in the claims.

at I- claim is:

1. A device of the character described urged outwardly, a in carried by the plunger at its outer en and projecting into the recess, a hand pivoted in the body and having an arm engaging the plunger, and a scale adjacent the free end of the hand, whereby the insertion of an article into con-. tact with the sides of the recess will cause it to contact with the'pin and thereby move the plunger to actuate the hand for indicating the size of the article.

2. A device of the character described comprising, a body portion having a converging recess therein, a plunger mounted in the body at the inner end of the recess and normally urged outwardly, a pin adcause it to contact with the pin and move the plunger to actuate the hand for indicating the size of the article. a 5 n testimony, that I claim the foregoin as my invention, 1" have signed my name this 12th day of June, 1919.

ERIK H. ALDEBORGH. 

